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Supplement

Sulforaphane

Rhonda Patrick's signature molecule, from broccoli sprouts.

Sulforaphane is a compound produced when you chew cruciferous vegetables like broccoli sprouts. We grade Sulforaphane C+ on evidence and C for worth-it at about $25-35 per month.

C+

Evidence

C

Worth it

Typical cost: $25-35/month

What it does

Sulforaphane is a compound produced when you chew cruciferous vegetables like broccoli sprouts. It activates the Nrf2 pathway, the body's own antioxidant and detox defense system.

What the research says

  • Activates Nrf2 antioxidant defenses

    Evidence: moderate. Mechanism well demonstrated in humans via broccoli sprout interventions.

  • May support markers of metabolic health

    Evidence: emerging. Small human trials show signals; larger replication needed.

DRAFT: strong mechanistic story with real but small human trials.

What the experts say

Every position links to its source. We include skeptics alongside supporters.

  • Rhonda Patrick

    “I've really gotten back on the sulforaphane train”

    Source Long-time advocate; describes herself as back on the sulforaphane train and emphasizes broccoli sprouts and stabilized supplements.

  • Christine Houghton

    Source, 2023-11-17 Phytochemical and nutrigenomics researcher specializing in sulforaphane; advocates a food-first approach and warns most sulforaphane supplements on the market are a waste of money.

Is it worth it?

C

DRAFT: broccoli sprouts are nearly free; stabilized supplements cost more for convenience.

Typical cost

$25-35/month

Common form, not a brand recommendation

Dosage contextemerging

30 to 60 mg glucoraphanin equivalents in trials; food sources vary widely.

Safety notes

Food-derived and generally safe. Supplement forms can cause digestive upset. Talk to your doctor if you take thyroid medication. This page is information, not medical advice.

Longevity Lab Report

Sulforaphane news, graded when it happens.

New studies, dose debates, and expert shifts on sulforaphane, in one email a week. Free.

Changelog

Last updated 2026-10-15

  • 2026-10-15|Batch 1 expansion entry, DRAFT. Grades provisional; expert positions unsourced unless noted.
  • 2026-10-15|Goals/dosage added; prescription flag set where applicable.